Apparatus for depositing marshmallow, dough, batters, and the like



Dec. 29, 1953 "r. OAKES 2,664,055

E. APPARATUS FOR DEPOSITING MARSHMALLOW, DOUGH. BATTERS. AND THE LIKE Filed Feb. 20, 1951 3 ,ShGOts-Shet 1 FIGJ.

INVENTOR.

EARLE T. OAKES HIS ATTORNEYS.

Dec. 29, 1953 E. 1-. OAKES 6 APPARATUS FOR DEPOSITING MARSHMALLOW,

DOUGH, BATTERS, AND THE LIKE 3 Sheets-Sheet 2 Filed Feb. 20, 1951' om mm 24 m& 5 b

m9 3 Q2 8 N2 mm i A 3 Q2 Q. 8 R

INVENTQR EARLE T. OAKES Q BY N my a i n 1 7 HIS ATORNEYS.

Dec. 29, 1953 E. 1'. CAKES APPARATUS FOR DEPOSITING MARSHMALLOW,

:s Shets-Sheet s DOUGH, BATTERS. AND THE LIKE Filed Feb. 20, 1951 m t w: n m

1 9w wm INVENTOR- EARLE T. OAKES' BY (LAW. ,MM

HIS A ORNEYS.

Patented Dec. 29, 1953 APPARATUS FOR DEPOSITING MARS'HMAL- LOW, DOUGH, BATTERS, AND THE LIKE Earle T. Oakes, Douglaston, N. Y., assignor to BEE. T. .Oakes Gorporation, Islip,4N. Yuacorporation of New York ApplicationFebruaryZfl, 1951, Serial No; 211,961

11 Claims. I

This invention relates'to improvements in depositing devices andit relates particularly to an improved form of depositor for depositing dough, batters and the like-"to produce vanilla warfers; pound cake, layer cake, sponge cake,.and so Iorth and for depositing marshmallow, jams, jellies and the like .on cookies or cakeswhich .are:supported by aicontinuouslymoving conveyorduring thecdepositing operation.

Generally, two types of :depositorsare in main the bakery industry. The most common is the intermittenttype 'ofdepositor; in whichzaconveyor adapted to receive or support articles; is :moved intermittently beneath .a depositing hopper; The other type includes a continuously moving conveyor and a depositing hopper which .is reciprocated l'engthwise'of :the conveyorto enable the coatings or toppings to be deposited on the x continuously moving-articles.

Both of :the prior :types of depositors include relatively largehoppers :having open tops to, permit'the :material, for example, marshmallow, :to be poured intor-the-top of the hopper.. Withthe intermittent typeaof depositor; the .conveyorrwith the articles-thereoncis zadvanced until a row of cookies or; the likeis disposed belowthe depositor so. that thematerial: can be-applied to the articles during the dwell period of thesconveyor. With this arrangement it :is .diflicult :to I obtain high I operating speeds because not the stopstart zaction of the conveyor..-

Withthe continuous type of idepositonzthehopper is reciprocatedbutadue toitsvery substantial Weight, in combination withthesmaterial therein, it is difiicult "toiobtain an operating rate higher than vabout 50 strokes of the hopper per minute.

One @of :the great disadvantages of both the in? termittent andcontinuous .depositors :is the I difficulty maintaining sanitary conditions .anduniformity .in the characteristics of the'amaterial :be-

ingrdeposited. inasmuclrastthetprior hoppers are.

open, a. large surface -'area of :the; material jis'aex posedstocontaminationirom outsidesources. Not; only-- do; dust and contaminants; settle on and stick to "the' material in the hopperbut'rthe operators very frequently put their hands in 'the material andoften scrape scrap lbackinto the hopper. Moreover, .in the case o'f marshmallowand-jelly toppings, exposure-to the air causes thematerial to maintain the deposits reasonably tunitorm in weight-and shape.

When the material being deposited is a batter or a dough, the mixing of the old material with the fresh material causes. streakiness. in the resulting; products and an uneven texture in the cookies or cakes.

The present invention relates to an improved type of continuous depositor, that is, adepositor having a continuously moving conveyor, which overcomes the disadvantages of the. prior depositors :pointed out above.

Generally, the new depositor includes a light weight manifold provided witha plurality ,of .denositingnozzles, :the manifold beingxconnectedzby means of flexible conduits'to 'a separate source of supply of the fluid materialso that thismaterial :is introduced substantially continuously into thermanifoldthrough'aaclosedsystern; Thesource of the material may-be acontinuousrmixing'device of the typedisclosed in.my'copendingapplication Serial Number 749,556, filed May 21, 1947, now abandoned; .It may consist of .one .orimorez-pressure chambers from whichthe: material is 'iorced continuously by air pressure or the like, orriit may consist simply of .a pump.

The manifold-is carriedby an arrangements! slides movablealongiright.angularlyrelatedypaths so that the manifold can move toward 't'hBaGOl'l veyor, thenztravelwithrtheaconveyor .atxthe same speed while thematerialis being deposited, then moveawayfrom-the conveyor after the nozzles have been closed tobreak off the stream .ofmaterial theznozzles and then return counter to the-direction ofzmovementroflthe conveyor tocon. tinue through another cycle. Due to :the light weight manifold :and its "relatively small capacity ascontrasted "with :the prior ihopper" mechanisms, itis possible :tomove-the manifold at as; much higher speed andthereby increase the ratelof production of themachine vseveralfoldover the prior continuous orintermittent depositors.

Another :m'arked advantage of the. depositor is that :it; affords a .completely closed system for the material being deposited, thereby reducing contaminationtoaminimum.

The parts of the manifoldand its connections are easily disassembled for eflicient cleaning and easily adjusted to control the sizeand the shape of'the'deposit.

In addition to the above, the manifold may "be provided with the partition elementsw'hich enable materialsof different'colors-or flavors to be deposited simultaneously.

Moreover; adjustment of the-individualnozzles enables very uniform deposits to be maintained over long periods of operation so that adjustment oi -the machine during its operation is infrequent. For a better understanding of the present invention' reference may 'be had to the accompanying,

drawings in which liis a view inside'elevation of a typicalmachine embodying the present invention with a portion of the frame broken away to disclose details of construction and disclosing diagrammatically the supply source for the material to be deposited;

Fig. 2 is a plan view of the machine with the conveyor belt and the depositing manifolds removed to disclose the operating mechanism;

Fig. 3 is an end view of the machine;

Fig. 4 is a view in elevation and partly in section of the depositing manifold; and

Fig. 5 is a view in section taken through one of the nozzles to illustrate an adjustment feature thereof.

A typical depositor may include a supporting framework of any desired design or size, depending upon requirements. As illustrated in Figs. 1 to 3, a frame l0 may include the side frame members ll and I2 which consist of flat plates joined by suitable cross braces l3, l4 and I5. Adjacent to the opposite ends of the frame In are rotatably mounted the roller l6 and the nose plate I! which support a conveyor belt [8 having its upper flight above or about on a level with the upper edges of the side frames II and [2. The upper flight of the conveyor belt 18 may be supported by means of a guide plate extending lengthwise of the side plates to prevent sagging of the upper flight of the conveyor. The lower flight is kept out of contact with the cross-braces and the like by means of one or more rollers [9. The conveyor I8 can be tensioned properly by adjusting the nose plate H lengthwise of the machine, a handwheel Ila being provided for this purpose. The belt can also be adjusted by means of a handwheel no at the opposite end of the frame member II which adjusts a roller toward and away from the lower flight of the belt.

Adjacent to the left-hand end of the frame Ill is a magazine type of hopper 20 which, as shown facing the'nozzle plate 31 to receive a slide valve 39 which extends lengthwise of the groove 38 from its open right-hand end. The upper plate 36 is provided with a plurality of openings 40 which are adapted to be aligned with corresponding openings 4| in the slide valve 39 when the latter is moved to the left and out of alignment when the slide valve is moved to the right.

The lower nozzle receiving plate 31 is provided also with the openings 46 substantially in alignment with the openings 40 and is provided with recesses for receiving the upper cylindrical flange portions 42 of the nozzles 43.

As shown in Fig. 5, each nozzle 43 has a downwardly extending tubular portion 44 and an inclined central passage 45 which can be brought into or out of the alignment with its corresponding opening 46 in the lower plate 31 by bodily rotation of the nozzle 43. The flange portion 42 of the nozzle may be provided with a groove 41 for receiving a packing and the nozzle may be retained in position with capacity for rotation by means of a retaining plate 48 secured to the under side of the plate 31 by screws or in any other suitable way. By rotating the nozzle 43, the inlet end of the passage 45 can be brought fully into alignment with the opening 46 or completely out of alignment with this opening to thereby regulate the flow of the material through the nozzle.

The material to be deposited is supplied to the manifold 32 by means of a plurality of flexible conduits 50, 5|, 52, and 53 (Fig. 4) which are connected to suitable couplings 55 along the length of the manifold. The opposite ends of the conduits 50 to 53 may be connected to a distributing manifold 56 which, as illustrated in Fig. 1, may be connected to a suitable source 51 of the material under pressure. If desired, the material can be introduced through one end of the manifold 56 by means of a flexible tube, providing the material is sufficiently fluid and the nozzles are' adjusted properly.

Inasmuch as it may be desired to deposit two different kinds or colors of material through the Overlying the conveyor l8 adjacent to the hopper 26 is a feeding plate 24 which is reciprocated back and forth to dislodge the lowermost wafers successively from the compartments 2| and place them in spaced rows transversely of the conveyor l8. The plate 24 is joined at its ends to push rods and 26, Figs. 1 and 2, which are driven in a manner to be described hereinafter. The push rods 25 and 26 are guided in the guide lugs 21, 26 on opposite sides of the frame plates l l and I2. The rows of wafers pass beneath the depositing devices 29 and (Fig. 1) to receive a topping of one or more materials and are finally discharged at the right-hand end of the frame [0 over the nose-plate I! onto a delivery table, not shown.

The depositing devices 29 and 30 are alike and only the device 29 will be described herein in detail. Corresponding parts of the device 30, when referred to, will be identified by a primed corresponding reference character. The device 29 in cludes a depositing manifold 32 which consists of an elongated tubular member having removable end closure plugs 33 and 34. On the undersurface of the tubular member 32 is an elongated housing which consists of an upper perforated plate 36 and a lower nozzle receiving plate 31. The upper plate 36 is provided with a groove 38 same depositing manifold, a partition structure consisting of an elongated rod 58 having a series of partitions 59 along its length may be inserted into the depositing manifold 32 and held in position by means of the end closures 33 and 34. By positioning the partitions between the several couplings and between the several nozzles 43 and connecting the alternate couplings 55 or different groups of couplings to different manifolds 56 or sources of supply, it is possible to supply two or more different kinds, colors, or flavors of material to the depositing manifold without mixing them so that several different products may be produced simultaneously with the same machine. Also, With fluid materials, different colorsported and moved in a manner to be described hereinafter.

Referring now to Figs. 1 and 2, the drive mech-- anism for the depositor will now be described.

Thedrive mechanism includes an electric motor- 62 which is slidably supported by means of the brackets 63 and 64 on a pair of spaced guide rods Thus, it

65fand168. for movement lengthwise ofrtheframc I0. The guide -rodsL65:-and.66ar.e mountedt the crossbraces 1:3 :and 1:4 extending abetweentthe sideiframes I1 and Id. The bracketed is prcvided withaninternally threaded bushing 69 receivi-nga threaded shaft which'is journalledifor rotation but held against-axialimovementiin .a frame member l'l' (Fig. 2). The inner tend. of the shaftl' fl'carries. a bevel gear I2 which meshes with a pinion leson the inner endof'the shaft'l l. The shaft Mihas a handwheel .on its'outerciend and is supported for'rotation inxthe bracket :16 and the bearing 11 :carried'by .the frame: The handwheel I5 enables adjustmentof the motor lengthwise of the frame to varythe speed of a speed reduction unit 18, also supported by the cross member M. The motor 62 drives an expansi'ble cone-pulley ('9' which receives a V-belt 8.0. for driving the pulley 8'I at the'input end'ofthe speed reduction unit 518. The 'two cone elements of the :cone pulley "lfl are normally urgedztogether inxa known wayby means of aspring mechanism 82 so-that adjustment-of the :motor tothe :right, asviewed in Fig. 2, allows the belt tomoveout toward the peripheries of the cones and causes 17118 pulley 8Ito be driven faster. Adjustment of the motor to the left. decreases the speed of the pulley 8i :and the speed of the output shaft83of the reduction unit.

The-output shaftt83 is provided witha sprocket 84 which drives the sprocket 85 on the cross shaft .86 by means ofsachain '81. The shaft 8.6 isrotatablymounted'in the frame plates I I and I2 abovethe motor and has a sprocket 81a at its upper end, as viewedin Fig. .2, fordriving the sprocket .88, connected to the'roller I6, by means of a chain 89. The system therefore provides a directbut variable speed drivelbetweentheimotor 6.2 and the-conveyor .belt I8 to enable-the speed of the conveyor belt to be varied substantially;

The output shaft 83 of'the gear reduction unit carries a second sprocket 90 which drives .by means of a chain'fll, a sprocket 92 'onthe cross shaft 93. The latter is rotatably mounted in suitablebearingsinthe'frame-members I'I and'l2 as shown'in Fig. .2. The shaft .93 is the main drive shaft for the depositor and the waferor cookie 'feedingp1atei2.,4.. ASibGStShOWIliiH Fig. 1, the shaft'93 carries a crankdisc 94a. Thecrank pin 95 on the disc 94a is conneetedhy means :of

a link :97 to the lower end of a rocker arm 98 .on the outside of the frame member -I I,.as shown in Fig. 2. The rocker arm.98 carries acrankpin 99 connected to the link 91 which is adjustable transversely of the rocker arm by means .of a handwheel and screw assembly I00. The rocker arm 98 is fixed at its upper end to a cross shaft 501 which extends between the plates II and I2 and carries corresponding levers I02 and I03 Wh-ichare connected pivotally at their upper ends to the push rods 25 and 26, respectively. The push rods may have hingedly connected sections to permit them to follow the oscillation of "the levers I02 and I03. Thus, as the crank disc Ma isrotated, the feed plate 24 is reciprocated below the hopper to strip wafers from the hopper and deposit them in rowsupon the conveyor IS.

The adjustments referred to above enable the stroke and position of the plate to be regulated.

The shaft 93 also carries .afirst .eam Stan-d asecond cam 94b (Fig.2) to control .themovementof the depositing devices and 3.0..

As. indicated above, themanifold v32 :zis carried by means of slide blocks-80 'andrfi'l. Asrshcwnin Mg. .1, :the block :60 is slidablymounted ;-between themarallel. substantially horizontal rails .:I u'lwand' 1:05.01? 2. generally *H-shaped slidezmember M16. The block vIil is similarly mounted .in :aslide memberilnl on the opposite side of the machine.

"The slidewblocksfilland 6| can move substantially parallel with the conveyor I 8 in the-frames I 86 and I 01. The acornerspof' the frames .I;Il6' and I 07 "are provided with guide rollers IalJBitmd +1.09; respectively; which engage vertical .guide rails. I 5H) and III-onythesideplate II and the guide rails H2 and. :I I'3,-:on :therside" plate "I2. The H-shaped slideframes' I .06.and' L01 move up'anddownwhi-le therslide; blocks: 60 and 6 I therein can movezhorizontally; Up and down movement of the ..-;slide frames I and IIII is .produced'as follows. The cam 8.4 is provided with an eccentric camtrack I I4. This cam track I I4 cooperateswith-anqarm or .lever I I5 havingr'a cam :follower 1| .ISathereon which engagesin the .cam track. The .lever I'I5 is supported on a shaft '6. As the cam "94 rotates, theilever [155 is oscillated, thereby rockingwthezlever :IizllytoWhich it is'connectedwby an adjustablelength link H8. The lever :I I! .hassa crank pin I I9 connected to the link I I8. -I 19.115 adjustable lengthwise. of the lever by means oftthescrew andhandwheellZO. The lever III is keyed at its upper end-to the cross shaft 12] which extends between the frame plates II' and I2. The shaft'lil carries nearoneend, aS'FViSWBd in Fig. 2, a crank member: I222 whichisconnected by :means'of alink 12.3 toa crank I24,onthe cross shaft I25 so that these shafts rotate in unison. The ends :of the shaft IZ-I carry the levers I26, I 26; which have their :outer ends-connected'by means :of "the links "I21," I21 Ito athe H-shaped frames I06 and IIFI, respectivelvof the'depositor'all. 'The shaft 'zIi25 carries the levers 1:28, =whichiare connected .by means of the links I29, I29 to the slides I08 and I0! ofthe depositing device '29. iThus,.as the shafts Ill and are rocked,sthe depositing manifoldsof the depositors 28' and 30 are moved up and down with them.

Horizontal movement of the manifold is sproduced by means of the crank disc 9417, Fig. 2, which oscillates alever 13:0 in the'same manner that the lever N15 is :moved by the cam 94. The lever 1.30 is supportedrotatably-onthe-shaft H6. The upperxendof the lever I30 is connected by means ofoanad'justable link l3I to the lever 132 which is also provided with :an adjusting screw and handle I83. to vary the spacing of theend of the :link fl3l-from the axis of the supporting shaft-I34. The shaft I84 carriesat its opposite endsthe upwardly extending levers I35 and 136 which are connected by .means of the links 1.3.1. and I38 to 'the slidesblocks '60 and-.61 which carry the :manifoldl32- Linksl539 and I540 also connecttheflevers "I35 and I35totheslide blocks .60 and GI .ofrthe-depositor .30. Rocking-movement .of: the shaft by meansof the cam Mbcauses simultaneous movement of the manifoldsof-the depositors :29-:and 30?.parallel with. the :conveyor I8.

The. warioussadjustments referred to' above per mitithetiming of themanifolds with respect to the speed 10f the conveyor-and also permit the up.:nnd.-;down and horizontal .movements .of the depositing manifolds .to be varied throughout-a wide range. Rreferably, the adjustments are madeso thattthe manifolds 3.2:move downward- 1y toward'tthe .conveyor, then parallel. with the 'conveynr while .therslide valve :39 of the'rdeposifl ing manifold .opened by'means of thecam members M2 and..-I"42cn theside plate; l2ito hold Thetpin.

the valve open (Figs. 2 and 4). The valve remains open during a part of the movement of the manifolds to the right in the same direction of travel as the conveyor and closes before the travel of the manifold is completed. The manifold 32 then moves upwardly stretching the streams of material between the conveyor 18 and the nozzles and breaking them to leave the usual tails standing up from the articles. The manifold is then moved to the left as viewed in Fig. 1 in a substantially horizontal plane and then toward the conveyor to complete another cycle. All of these movements are timed to the position and speed of the articles on the conveyor so that continuous movement of the conveyor is possible while intermittent depositing takes place on successive rows of cookies or the like carried by the conveyor.

Inasmuch as the whole assembly including the depositing manifold and the various slides are light in weight, a very rapid repetition of the depositing cycle can take place without setting up excessive vibration in the machine so that a very high production rate is possible with the machine.

While two depositing devices 29 and 30 are disclosed in the drawings, it will be understood that only one such depositing device need be used on the machine for depositing a single type of material or several different kinds of material on the same or different cookies.

The dual type of depositor illustrated is useful when it is desired to deposit two different kinds of material on the same wafer, for example, marshmallow and jelly on the same water. The manifolds may be supplied from several separate sources as desired.

It will be understood that the apparatus may be used for depositing many different types of materials, and that its size and details of construction may be modified as the purpose demands. Therefore, the form of the invention described herein should be considered as illustrative and not limiting the scope of the following claims.

I claim:

1. A depositor comprising a tubular member having a plurality of nozzles, a closed system including flexible conduits to supply fiowable material under pressure to said tubular member for discharge through said nozzles, valve means interposed between said nozzles and said tubular member movable to open and closed positions to permit and prevent, respectively, flow of said material through said nozzles, means supporting said tubular member for movement substantially horizontally and up and down, and mechanism operated in timed relation to move said tubular member substantially horizontally in one direction, open said valve during said movement, close said valve, move said tubular member upwardly and in the opposite direction, then downwardly and repeat the cycle.

2. A depositor comprising a tubular member having a plurality of downwardly extending nozzles, a closed system including flexible conduits to supply fiowable material under pressure to said tubular member for discharge through said nozzles, valve means interposed between said nozzles and said tubular member movable to open and closed positions to permit and prevent, respectively, flow of said material through said nozzles, means supporting said tubular member for movement substantially horizontally and up and down, and mechanism operated in timed relation to move said tubular member substantially horizontally in one direction, open said valve during said movement, close said valve, move said tubular member up and in the opposite direction and then down and repeat the cycle.

3. A depositor comprising a frame, first slide means on said frame and movable up and down relative thereto, second slide means mounted on said first slide means and movable back and forth at substantially a right angle to said first slide means, a tubular member mounted on and movable with said second slide means and having a plurality of nozzles extending downwardly therefrom and connected to said tubular member by passages, a closed system including flexible conduits to supply material under pressure to said tubular member for discharge through said nozzles, valve means to open and close said passages, and mechanism to move said slide means and said valve in timed relation to cause said tubular member to move in one of said right angle directions while the passages are open, and then to close said passages and move said tubular member up and in the opposite right angle direction.

4. A depositor comprising a frame, a pair of substantially vertical guides on said frame on opposite sides of said frame, a slide member mounted in each pair of guides for up and down movement, guide elements on each of said slide members extending substantially perpendicular to said guides, a tubular member having a plurality of downwardly extending nozzles, valve means interposed between said tubular member and said nozzles, said valve means being movable between open and closed positions to permit and prevent communication between said tubular member and said nozzles, means at opposite ends of and fixed to said tubular member slidable in said guide elements, mechanism to move said slide members up and down in said guides, mechanism to move said tubular member back and forth along said guide elements, mechanism to open and close said valve means, and drive means to operate said mechanisms in timed relation to open said valve means as said tubular member moves in one direction in said guide means, and close said valve means as said tubular member moves in the opposite direction and said slide members move up in said guides.

5. The depositor set forth in claim 4, comprising a distributing manifold fixed to said frame, at least one flexible conduit connecting said manifold to said tubular member to permit relative movement therebetween, and means to supply fiowable material under pressure to said manifold.

6. A depositor comprising a frame, two pairs of guide members on said frame on each side thereof, said guide members being substantially vertical, a slide member mounted between each pair of guide members for movement up and down relative to said frame, a supporting member mounted slidably in each slide member for movement back and forth substantially perpendicular to said guide members, a pair of tubular members having depositing nozzles thereon extending transversely of said conveyor and each having its end portions connected to a different supporting member on opposit sides of said frame, crank means for moving said slide members simultaneously up and down, crank members on opposite sides of said conveyor connected to the supporting members to move them back and forth simultaneously in the same direction,

and means connecting said crank means and crank members to each other to cause said tubular members to move along closed paths, parts of which are substantially horizontal.

'7. A depositor comprising a source of fiowable material to be deposited, means to maintain said material at a pressure substantially higher than atmospheric pre sure, an. elongated tubular manifold having a l r of spaced apart openings extending lengthwise thereof, closures for the ends of said manifold, flexible means connecting said source of material to said manifold to introduce flowabl mate ial at superatmospheric pressure into said manifold at spaced apart points along the length of said manifold, a row of nozzles mounted on said manifold, each of said nozzles being substantially in alignment with one of said openings, a slide valve member having openings therein corresponding to said nozzles interposed between said nozzles and said manifold, said slide valve member being movable to position the openings therein selectively in alignment, and out of alignment, with the openings in said manifold and said nozzles.

8. A depositor comprising a source of fiowable material to be deposited, means to maintain said material at a pressure substantially higher than atmospheric pressure, a fixed distributing pipe connected to said source to receive said material therefrom at said higher pressure, an elongated tubular manifold having a plurality of spaced apart openings in a row extending lengthwise of said manifold, means supporting said manifold for movement transversely of its axis, closures for the ends of said tubular manifold, a c

row of nozzles mounted on said manifold, each of said nozzles being substantially in alignment with a separate opening in said row, a slide valve member having openings therein corresponding to said nozzles interposed between said nozzles and said tubular manifold, said slide valv memher being movable to position the openings therein selectively in and out of alignment with said nozzles and the respective openings in said manifold, a plurality of couplings spaced apart lengthwise of said manifold, and flexibl conduits connected to said manifold and said distributing pipe to introduce flowablematerial into said manifold under pressure for discharge through said openings therein and said nozzles and allow I.

ove-ment of said manifold relative to said dis-7 outing pipe.

9. A depositing head comprising an elongated tubular manifold having a plurality of spaced openings in a row extending lengthwise of .c d manifold, a plurality of couplings spaced lengthwise of said manifold to introduce flowable material under pressure into said manifold, clofor the ends of said tubular manifold, a row no zles being substantially in alignment with a separate opening in said row, a slide valve member having openings. therein corresponding.

zles mounted on said manifold, each n material through said nozzles, a rod engaging at its opposite ends and held against endwis movement by said end closures and a plurality of thin plates fixed to said rod and fitting the interior of said tubular manifold and spaced apart to be disposed between said couplings and between said nozzles to divide said tubular manifold into compartments, each of which communicates with one coupling and at least one nozzle.

10. A depositing head comprising an elongated tubular manifold having a series of holes theremeans to introduce material into said manifold, under pressure, a row of nozzles on and communicating with the interior of said tubular manifold through said holes and a slide valve member having openings therein corresponding to said nozzles, slide valve member being interposed between and slidable relative to said nozzles and said tubular manifold to position the openings in said slide valve member into and out of alignment with said nozzles, said nozzles being rotatably mounted on said tubular manitold on axes offset laterally from the corresponding holes in said manifold, each nozzle having a central passage, the inlet end of which is eccentric to the axis of rotation of said nozzle to enable it to be moved into and out of alignment with the corresponding holes in said manifold and into partial alignment therewith to adjust the rate of discharge from the manifold through said nozzles.

11. A depositing head comprising an elongated tubular manifold having a plurality of spaced apart openings in a row extending lengthwise of said manifold, a plurality of couplings spaced lengthwise of said manifold to introduce flowable mate 'ial under pressur into said manifold, closure for the ends of said tubular manifold, a row of nozzles mounted on said manifold, each of said nozzles corresponding to a separate opening in said row, a slide valve member having openings therein corresponding to said nozzles interposed between said nozzles and the row of openings in said manifold, said slide valve memher being movable to position the openings therein selectively in alignment with said, nozzles to discharge material from said manifold through said nozzles and out of alignment with said nozzles to prevent discharge of material through said nozzles, each of said nozzles being rotatably mounted on said tubular manifold, the axis of rotation of each nozzle being offset with respect to the corresponding opening in said manifold, and each nozzle having a central passage, the inlet end of which is eccentric to th axis of rotation of said nozzle to enable it to be moved into and out of alignment and into partial alignment with the corresponding hole in said manifold by rotation of said nozzle to adjust the rate of discharge from the manifold through each nozzle.

EARLE T. OAKES.

References Cited in the file of this patent UNITED STATES PATENTS 

